<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>文章列表</title>
    <link rel="stylesheet" href="./libs/bootstrap/css/bootstrap.min.css">
    <link rel="stylesheet" href="./css/reset.css">
    <link rel="stylesheet" href="./css/iconfont.css">
    <link rel="stylesheet" href="./css/main.css">
    <script src="./libs/jquery-1.12.4.min.js"></script>
    <!-- 引入模板引擎js文件 -->
    <script src="./libs/template-web.js"></script>
    <!-- 引入分页导航插件 -->
    <script src="./libs/jquery.twbsPagination.js"></script>
</head>

<body>
    <div class="container-fluid">
        <div class="common_title">
            文章列表
        </div>
        <div class="container-fluid common_con">
            <div class="row opt_btns">
                <div class="col-xs-6">
                    <form class="form-inline">
                        <select id="selCategory" name="" class="form-control input-sm">
                            <option value="">所有分类</option>
                            <option>未分类</option>
                            <option>奇趣事</option>
                            <option>会生活</option>
                            <option>爱旅行</option>
                        </select>
                        <select id="selStatus" name="" class="form-control input-sm">
                            <option value="">所有状态</option>
                            <option value="草稿">草稿</option>
                            <option value="已发布">已发布</option>
                        </select>
                        <button id="btnSearch" class="btn btn-default btn-sm">筛选</button>
                    </form>
                </div>
                <div class="col-xs-6">
                    <a href="article_release.html" class="btn btn-success btn-sm pull-right" id="release_btn">发表文章</a>
                </div>
            </div>
            <table class="table table-striped table-bordered table-hover mp20">
                <thead>
                    <tr>
                        <th>标题</th>
                        <th>作者</th>
                        <th>分类</th>
                        <th class="text-center">发表时间</th>
                        <th class="text-center">状态</th>
                        <th class="text-center" width="100">操作</th>
                    </tr>
                </thead>
                <tbody>
                    <tr>
                        <td>王积千造统最头</td>
                        <td>杰克</td>
                        <td>奇趣事</td>
                        <td class="text-center">2017-06-08 07:08:46</td>
                        <td class="text-center">已发布</td>
                        <td class="text-center">
                            <a href="article_edit.html" class="btn btn-default btn-xs">编辑</a>
                            <a href="javascript:void(0);" class="btn btn-danger btn-xs delete">删除</a>
                        </td>
                    </tr>
                </tbody>
            </table>
            <div class="row text-center">
                <ul id="pagination" class="pagination-sm"></ul>
            </div>
        </div>
    </div>
</body>

</html>

<!-- 准备文章类别模板引擎 -->
<script type="text/html" id="tpl-category">
    <option value="">所有分类</option>
    {{each data}}
    <option value="{{$value.id}}">{{$value.name}}</option>
    {{/each}}
</script>

<!-- 准备文章数据模板引擎 -->
<script type="text/html" id="tpl-list">
{{each data}}
<tr>
    <td>{{$value.title}}</td>
    <td>{{$value.author}}</td>
    <td>{{$value.category}}</td>
    <td class="text-center">{{$value.date}}</td>
    <td class="text-center">{{$value.state}}</td>
    <td class="text-center">
        <a href="article_edit.html?articleId={{$value.id}}" class="btn btn-default btn-xs" data-id="{{$value.id}}">编辑</a>
        <a href="javascript:void(0);" class="btn btn-danger btn-xs delete" data-id="{{$value.id}}">删除</a>
    </td>
</tr>
{{/each}}
</script>

<script src="./libs/https.js"></script>
<script>
    $(function () {

        $.ajax({
            type: "get",
            url: BigNew.category_list,
            success: function (backData) {
                if (backData.code == 200) {
                    let htmlStr = template("tpl-category", backData)
                    $("#selCategory").html(htmlStr)
                }
            }
        })


        // 封装加载文章数据函数
        let selPage
        function loadData(currentPage) {
            selPage = currentPage
            $.ajax({
                type: "get",
                url: BigNew.article_query,
                data: {
                    // 文章类型，为ID
                    type: $("#selCategory").val(),
                    // 文章状态
                    state: $("#selStatus").val(),
                    // 当前页码
                    page: currentPage,
                    // 每页显示多少数据
                    perpage: 5,
                },
                success: function (backData) {

                    if (backData.code == 200) {

                        if (backData.data.totalCount > 0) {
                            let htmlStr = template('tpl-list', backData.data)
                            $("tbody").html(htmlStr)


                            // 加载页码导航
                            // 因为页面导航的数据只能设置一次，所以在他每次设置之前就先摧毁掉他，然后再重新设置
                            $('#pagination').twbsPagination("destroy")
                            $('#pagination').twbsPagination({
                                // 总页数
                                totalPages: backData.data.totalPage,

                                // 可见页数
                                visiblePage: 6,

                                // 当前被选中的页码
                                startPage: currentPage,

                                // 页码默认点击事件
                                initiateStartPageClick: false,

                                // 文字
                                first: "首页",
                                last: "尾页",
                                next: "下一页",
                                prev: "上一页",

                                // 页码的点击事件
                                onPageClick: function (event, page) {
                                    // 点击哪个页码，加载其数据
                                    loadData(page)

                                }

                            });

                        } else {

                            $("tbody").empty()

                            $('#pagination').html("当前类别的数据为空......")
                        }

                    }
                }
            })
        }
        // 首次加载第一页数据
        loadData(1)



        $("#btnSearch").on("click", function (e) {
            e.preventDefault()

            loadData(1)

        })



        // 删除功能
        $("tbody").on("click", ".delete", function () {

            let delId = $(this).attr("data-id")

            $.ajax({
                type: "post",
                url: BigNew.article_delete,
                data: {
                    id: delId
                },
                success: function (backData) {
                    if (backData.code == 204) {

                        // 当当前页码的tbody 里面的tr 长度为1时，即为页码最后的一条数据，删除后应跳转到上一页 
                        if ($("tbody tr").length > 1) {
                            loadData(selPage)
                        } else {
                            loadData(selPage - 1)
                        }
                    }
                }
            })

        })


    })
</script>